
Smartwool
Black Cold Weather Running Socks
The Smartwool cold-weather running socks are mid-calf, targeted-cushion socks made from a stretch knit blend of merino wool and recycled nylon, with padded toe and heel for trail running. They use Indestructawool technology for durability, a 4 Degree Elite Fit System with stretch and mesh zones for fit and breathability, and a Virtually Seamless toe; the fabric is breathable, moisture-wicking, and anti-odor. Made in the U.S., they are intended for running in cold or inclement weather.
- Color
- Black
- Material
- blend of merino wool and recycled nylon
- Gender
- unisex
- Style
- activewear, performance, technical, sporty
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Socks
Color
Specifications
Cold-weather running socks with targeted cushioning and a merino wool blend for warmth without bulk.
Padded toe and heel, Indestructawool™ durability, breathable moisture-wicking anti-odour knit, 4 Degree™ Elite Fit System, mesh zones for breathability and blister protection, Virtually Seamless™ toe, made in the U.S.
- Color
- Black · black
- Material
- blend of merino wool and recycled nylon
- Secondary
- recycled-nylon
- Style
- activewear, performance, technical, sporty
- Occasion
- workout
- Gender
- unisex
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Socks
Additional Attributes
- cold-weather running sock
- targeted cushioning for warmth without bulk
- padded toe and heel
- trail-running appropriate
- fine stretch knit
- merino wool and recycled nylon blend
- Indestructawool™ technology for extra durability
- breathable
- anti-odour
- moisture-wicking
- 4 Degree™ Elite Fit System
- strategic stretch and mesh zones
- blister protection
- Virtually Seamless™ toe technology with flat knit toe seam
- made in the U.S.
Product Insights
Black Cold Weather Running Socks 55% merino wool, 42% nylon, 3% elastane Unisex sizing: Medium fits US men's 6-8.5 / women's 7-9.5; Large fits US men's 9-11.5 / women's 10-12.5 4 Degree Elite Fit System uses two elasticized zones around arch and ankle Merino dries slower than synthetics and requires more careful laundering
Verified claims
- fit_sizing
- Unisex sizing: Medium fits US men's 6-8.5 / women's 7-9.5; Large fits US men's 9-11.5 / women's 10-12.5
- fit_sizing
- Men's 8.5 is the top of Medium; men's 9 is the bottom of Large
- variant_selection
- Only two variants: Black / Medium and Black / Large, both in stock at 30 CAD
- cuff_height
- Crew height, reaching the lower calf
- material_composition
- 55% merino wool, 42% nylon, 3% elastane
- material_performance
- Merino wool retains warmth when damp
- moisture_management
- Breathable and moisture-wicking with mesh zones
- odour_resistance
- Naturally odour-resistant merino
- durability
- Indestructawool technology and nylon blend for extra durability
- fit_system
- 4 Degree Elite Fit System uses two elasticized zones around arch and ankle
- toe_construction
- Virtually Seamless toe with flat knit toe seam
- cushioning
- Targeted cushioning at toe and heel
- breathability
- Strategic mesh zones promote breathability
- care
- Machine wash warm delicate; tumble dry low; do not bleach, iron or dry clean
- care
- Use pH-neutral detergent and avoid agitation that can felt wool
- value
- 30 CAD with Smartwool 100% Satisfaction Guarantee within two years
- tradeoffs
- Merino dries slower than synthetics and requires more careful laundering
- styling
- Black with light heather gray accent panels and white embroidered logo
- use_cases
- Cold-weather running, trail running and inclement weather
- fit_consideration
- Try padded socks with your running shoes to check fit
- origin
- Made in the U.S.
Product record
- Title
- Black Cold Weather Running Socks
- Brand
- Smartwool
- Price
- 30 CAD
- Availability
- In stock
Buying Guide
1 comparison · 11 sourcesUses
Product comparison
Compared within this brand.
| Black Cold Weather Running Socks: Choose these mid-calf black running socks if you want targeted cushioning—padded toe and heel—with warmth the listing describes as just right without the bulk for cold-weather or inclement-condition runs, and it's pitched as perfect for trail running. They're knit from a blend of 55 percent merino wool, 42 percent nylon, and 3 percent elastane, with a 4 Degree Elite Fit System using stretch and mesh zones intended to promote breathability and help protect against blisters, plus a flat Virtually Seamless toe seam. Available in medium and large sizes, and made in the U.S.[1,2] | Brown Bear Hiking Socks: Choose these mid-calf hiking socks if you want padded cushioning under the foot in a merino wool and nylon blend (44% merino, 53% nylon, 3% elastane) that the listing says wicks moisture and controls odour. They suit hikers who want durability features like Indestructawool™ in high-impact zones, Shred Shield™ toe-wear reduction, a Virtually Seamless™ toe, and a 4 Degree™ Elite Fit System with stretch and mesh zones that Smartwool says helps protect against blisters. Note that one durability analysis frames Smartwool's premium price as financially justified only if your usage pushes the socks' wear point beyond the 500-mile mark, and they come in medium and large sizes with a striped beige-brown design and a bear graphic at the cuff.[3,4,5,6,7] | Solid Merino Wool Socks: Choose these for everyday crew socks that regulate temperature, wick moisture, and resist odour—one wearer reports being able to wear them for several days before they start to smell. They are made of a fine-knit 52% merino wool blend with recycled nylon and spandex, with elastic edging that one reviewer says stays up without squeezing too hard. Available in medium (shoe sizes 6 to 8.5) and large (shoe sizes 9 to 11.5) across four colors, though one customer found the size chart ran short for a long, narrow foot and preferred sizing up.[8,9,10,11] |
Image Analysis
1 images- 01

Product
Pair of mid-calf black knit socks laid flat showing front/top faces; ribbed cuff, contrasting knit panels on instep and toe, small embroidered white logo near cuff, and light gray accent stripes near heel and forefoot.
- Overall shapeTwo mid-calf socks shown flat, stacked with one slightly overlapping the other; visible foot, heel, ankle and cuff sections.
- CuffRibbed cuff with a tighter vertical knit pattern forming the top band of each sock.
1 region
x 0.17 · y 0.03 · w 0.66 · h 0.12 (high) - Embroidered logoSmall white embroidered figure symbol located near the outer side of the left sock cuff.
1 region
x 0.11 · y 0.08 · w 0.08 · h 0.12 (high) - Knit panelingContrasting knit texture panels over the instep and arch forming angular chevron-like shapes in a lighter gray knit against the black base.
1 region
x 0.30 · y 0.40 · w 0.55 · h 0.45 (high) - Heel and forefoot accentsThin light-gray horizontal stripe at the heel area and a shorter matching stripe across the forefoot area of each sock.
2 regions
x 0.05 · y 0.58 · w 0.30 · h 0.20 (high); x 0.18 · y 0.80 · w 0.18 · h 0.08 (high) - Toe area text mark“Small white text or marking printed at the tip of each toe; characters are small and partly obscured by overlap.”Partial
1 region
x 0.68 · y 0.86 · w 0.27 · h 0.14 (medium)
Other
Studio product shot on a neutral light gray background with soft even lighting and minimal shadow; socks centered and slightly overlapped.
- Background and stagingLight neutral gray background occupying entire frame, providing high contrast with the black socks.
- Lighting and shadowSoft, even lighting with faint soft shadow beneath and to the lower left of the socks.
- Shot compositionTop-down view showing the front/top faces of the socks; image is tightly cropped around the pair with small margin.
Colors
black· main body#0E0E0Elight heather gray· accent knit panels and stripes#9B9C9Bwhite· embroidered logo and toe markings#C4C4C4